MS-590 Online Microwave Moisture Analyzer

Direct In-Process Moisture Measurement

The MS-590 provides continuous, non-contact moisture measurement using multi-spectrum microwave penetration technology.
Designed for conveyors, bales, packages and bulk-material handling systems, it provides representative measurement information from within the measured material volume.

Core Information

Detection Target	Typical Applications
Moisture	Conveyor Belts · Bale Inspection Lines · Package Inspection Stations · Material Transfer Points · Selected Process Equipment

MS-590 Online Microwave Moisture Analyzer

Product Overview

Measurement Beyond the Material Surface The MS-590 uses transmitting and receiving microwave antennas to measure bulk materials without direct sensor contact. Multi-frequency microwave signals pass through the material, providing representative measurement information from within the microwave path rather than only from the visible surface.

Suitable Process Media

Suitable for selected: Tobacco and recovered-paper bales Paper packages Sinter and pellet materials Minerals and aggregates Agricultural and other bulk materials Final suitability depends on material composition, depth, density, moisture range and installation conditions.

Measurement Principle

The MS-590 transmits multi-frequency microwave signals through the measured material. Changes in moisture affect microwave energy attenuation and signal response. An application-specific calibration model converts the measured response into continuous moisture values. The measurement represents the effective microwave transmission path. Final performance depends on material composition, layer depth, bulk-density variation, moisture range and installation conditions.

Key Advantages

1、 Non‑Contact Penetration Measurement Measures through the

material without direct sensor contact, supporting thick layers, bales, packages and bulk‑material streams. 2、Representative Through-Material Measurement: Multi-frequency microwave signals pass through the selected material path, providing representative moisture information from within the effective measurement volume rather than only from the visible surface.

3、 Stable Industrial Measurement Microwave measurement does

not depend on visible light or material colour and contains no mechanical moving measurement components.

4、 Flexible Configuration and Integration Supports different

antenna arrangements, customized calibration, 4–20 mA output and RS232 communication for process‑system integration.

Technical Specifications

Parameter	Specification
Measurement Range	0–100%
Accuracy	Up to 0.5%*
Measurement Arrangement	Non-contact transmission / Application-specific
Microwave Sensor Dimensions	Two units, 140 × 120 × 180 mm each
Communication	RS232
Power Supply	24 VDC
Power Consumption	50 VA
Protection	IP65
Sensor Temperature	-20°C to +60°C
Ambient Temperature	-20°C to +85°C
Storage Temperature	−30°C to +95°C
Signal Cable	HF transmission cable, 2 m standard; customizable
Measurement Technology	Multi-spectrum microwave penetration
Measurement Parameters	Moisture
Analog Output	4–20 mA
Microwave Unit Housing	Die-cast aluminum
Weight	Approximately 5 kg

Available Configurations

Configuration1

MS-590-1 — Thick-Material Configuration: Rectangular-antenna configuration for thick material layers, bales and large packages. Measurement depth is application-dependent.

Configuration2

MS-590-3 — Insertion-Type Configuration: Insertion-type configuration for selected powders, slurries, liquids and difficult process-installation conditions. Final configuration depends on material form, measurement depth, temperature, equipment structure and installation requirements.

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